Interface and Composition Analysis on Perovskite Solar Cells

Fabio Matteocci, Yan Busby, Jean Jacques Pireaux, Giorgio Divitini, Stefania Cacovich, Caterina Ducati, Aldo Di Carlo

Résultats de recherche: Contribution à un journal/une revueArticle

Résumé

Organometal halide (hybrid) perovskite solar cells have been fabricated following four different deposition procedures and investigated in order to find correlations between the solar cell characteristics/performance and their structure and composition as determined by combining depth-resolved imaging with time-of-flight secondary ion mass spectrometry (ToF-SIMS), X-ray photoelectron spectroscopy (XPS), and analytical scanning transmission electron microscopy (STEM). The interface quality is found to be strongly affected by the perovskite deposition procedure, and in particular from the environment where the conversion of the starting precursors into the final perovskite is performed (air, nitrogen, or vacuum). The conversion efficiency of the precursors into the hybrid perovskite layer is compared between the different solar cells by looking at the ToF-SIMS intensities of the characteristic molecular fragments from the perovskite and the precursor materials. Energy dispersive X-ray spectroscopy in the STEM confirms the macroscopic ToF-SIMS findings and allows elemental mapping with nanometer resolution. Clear evidence for iodine diffusion has been observed and related to the fabrication procedure.

langue originaleAnglais
Pages (de - à)26176-26183
Nombre de pages8
journalACS Applied Materials and Interfaces
Volume7
Numéro de publication47
Les DOIs
étatPublié - 2 déc. 2015

Empreinte digitale

Perovskite
Secondary ion mass spectrometry
Chemical analysis
Solar cells
Transmission electron microscopy
Scanning electron microscopy
Iodine
Conversion efficiency
Nitrogen
X ray photoelectron spectroscopy
Vacuum
Imaging techniques
Fabrication
Perovskite solar cells
perovskite
Air

Citer ceci

Matteocci, Fabio ; Busby, Yan ; Pireaux, Jean Jacques ; Divitini, Giorgio ; Cacovich, Stefania ; Ducati, Caterina ; Di Carlo, Aldo. / Interface and Composition Analysis on Perovskite Solar Cells. Dans: ACS Applied Materials and Interfaces. 2015 ; Vol 7, Numéro 47. p. 26176-26183.
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Matteocci, F, Busby, Y, Pireaux, JJ, Divitini, G, Cacovich, S, Ducati, C & Di Carlo, A 2015, 'Interface and Composition Analysis on Perovskite Solar Cells', ACS Applied Materials and Interfaces, VOL. 7, Numéro 47, p. 26176-26183. https://doi.org/10.1021/acsami.5b08038

Interface and Composition Analysis on Perovskite Solar Cells. / Matteocci, Fabio; Busby, Yan; Pireaux, Jean Jacques; Divitini, Giorgio; Cacovich, Stefania; Ducati, Caterina; Di Carlo, Aldo.

Dans: ACS Applied Materials and Interfaces, Vol 7, Numéro 47, 02.12.2015, p. 26176-26183.

Résultats de recherche: Contribution à un journal/une revueArticle

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AU - Ducati, Caterina

AU - Di Carlo, Aldo

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